public class Test2 {
    public static void main(String[] args) {
/*        int[]arr = new int[12];
    arr[0]=1;
    arr[1]=1;
        for (int i = 2; i < arr.length; i++) {
            arr[i]=arr[i-1]+arr[i-2];

        }
        System.out.println(arr[11]);*/
        System.out.println(getSum(12));

    }
    public static int getSum(int month){
        if (month ==1 ||month ==2){
            return 1;
        }else {
            return getSum(month-1)+getSum(month-2);
        }
    }
}
